Well pump



Aug. Z6, 1924.

A. J. NICHOLAS WELL PUMP Filed March '7, 1924 ,A fr0/swf V5,

Patented Aug. 26, i924.s

Urfa ANDREW J'. NICHOLAS, OF PHILADELPHIA, PENNSYLVANIA, A'SSIGNOB T0 Il).4 COOK, INC., OF LAWRENCEBURG, INDIANA, A CORPORATION OF INDIANA.

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Application led March 7, 1924. Serial No. 69?,864.

To all whom t may commu:

'Be it known that I, ANDREW J. NICHOLAS, a citizen of the United States, and a resident of Philadelphia, in the county of Philadelphia and State of Pennsylvania,

have invented certain new and useful Improvements in Well Pumps, of which the following is a full, clear, and eXact description, reference being had to the accompanying drawing, forming part of this specification.

My invention relates to pumps, particularly those using double plungers, and to the provision of means for measuring the depth of Water within the well casing, .where it 1s impossible to get a water level finder down between the inside of the well casingv and the outside of the pump pipe connections. n

In double plunger pumps, there is normally a cylinder inthe pump pipe, which is lowered inside the well casing, through which water is drawn, and the plungers working in opposite directions serve to draw the water from the well, and force it up through th pipe to the point of delivery.

In such pumps, heretofore, so far as I am advised, there has been no way of measuring the depth of liquid in the well without pulling out the plungers and sounding with a bob and line.

It is the object of my invention to provide for hollow pump rods, to the end that means is provided for measuring the depth of the liquid, be it water or oil, within the well casing, without removing the plungers.

I accomplish my object by that certain construction and arrangement of parts to be hereinafter more specifically pointed out and claimed.

In the drawing:

Figure 1 is a slde elevation of the plunger system of a deep well pump.

Figure 2 is a longitudinal section through the device of Figure I..

Figure 3 is a sectional view on a larger scale of the referred sounding device, in

f which provision is made for determining well depth without regard to a slack line, as is the usual mode of sounding. v

I have shown merely one of the standard double plunger, ump and rod systems in use for deep wel pumps by A.. D. Cook,

Inc., at Lawrenceburg, Indiana, and do not `intend to limit the application of my invention to this form of pump alone.

I show the lower plunger 1 having the hollow pump rod 2, extending up to a point of application of power. I show also an upper lunger 3, having, as is usual, a hollow roh or pipe 4, extending up around the first rod 2, to a point of application of power. It will be understood that these plungers will operate in a deep well cylinder, normally at the bottom of the pump pipe.

.The plunger 2 being hollow, and extending to the lower extremity of the pumping system, is used by me for lowering a device into the well, which device tells depth by other means than merely slackness of the line to which the weight or bob is attached. I can also use the hollow plunger itself to determine the water depth .by means of variations in air pressure applied to the top of the plunger.

The device used by me, by preference as being more readily operated and read by rule of thumb, is a hose 5, of a diameter to sli down through the plunger rod, at the en of which hose is a weighted rod 6. The rod 6 is of substantially the diameter of the hose, and has a hollow bore 7, terminating in a lateral port 8, the bore communicating with the interior of the hose.

To determine the depth of water in thewell, the hose is fed down through the hollow pump'rod so that the weight will carry the end out through the bottom of the plunger. Then by forcing air into the hose and noting the point when the hole or port 8l becomes submerged in liquid, by the variation in air pressure in the air line, the operator can-tell when the port has come just below the level of the liquid in the well or casing. He then stops feeding down the hose and withdraws and measures it. Knowing the length of the hose, he can thus tell the liquid level in the well'bottom, which is the factor he wishes to determine.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is v l. A well pump having a plunger, and a plunger rod, said rod eing hollow and opening into the bottom of the well, and

means operating through said hollow rod for determining the depth of liquid in the Well.

2. A Well pump having) a plunger, and a plunger rod, said rod eing hol-10W and opening into the bottom of the Well, and means operating through saidl hollow rod for determining the depth of liquid inthe Well, said means comprising a member to be lowered through the hollow rod, and means insaid member for indicating the point when it becomes submerged in liquid.

3. A well pump having a plunger, and a Leonie? plun er rod, said rod being hollow and opemng into the bottom of the- Well, and

-means operating through said hollow rod for determining the depth of liquid inthe Welhsaid means comprising a tubular element adapted .to be lowered throughA the hollow rod and a port in the lower end of said element, whereby the chan e in pressure of a column vof air forced t rough the tubular element will indicate the instant of submergence of the said port.

ANDREW J. NICHOLAS'. 

